/**
 * @license  Highcharts JS v7.0.3 (2019-02-06)
 * Sankey diagram module
 *
 * (c) 2010-2019 Torstein Honsi
 *
 * License: www.highcharts.com/license
 */
'use strict';
(function (factory) {
    if (typeof module === 'object' && module.exports) {
        factory['default'] = factory;
        module.exports = factory;
    } else if (typeof define === 'function' && define.amd) {
        define(function () {
            return factory;
        });
    } else {
        factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
    }
}(function (Highcharts) {
    (function (H) {

        H.NodesMixin = {
            // Create a single node that holds information on incoming and outgoing
            // links.
            createNode: function (id) {

                function findById(nodes, id) {
                    return H.find(nodes, function (node) {
                        return node.id === id;
                    });
                }

                var node = findById(this.nodes, id),
                    PointClass = this.pointClass,
                    options;

                if (!node) {
                    options = this.options.nodes && findById(this.options.nodes, id);
                    node = (new PointClass()).init(
                        this,
                        H.extend({
                            className: 'highcharts-node',
                            isNode: true,
                            id: id,
                            y: 1 // Pass isNull test
                        }, options)
                    );
                    node.linksTo = [];
                    node.linksFrom = [];
                    node.formatPrefix = 'node';
                    node.name = node.name || node.options.id; // for use in formats

                    // Return the largest sum of either the incoming or outgoing links.
                    node.getSum = function () {
                        var sumTo = 0,
                            sumFrom = 0;

                        node.linksTo.forEach(function (link) {
                            sumTo += link.weight;
                        });
                        node.linksFrom.forEach(function (link) {
                            sumFrom += link.weight;
                        });
                        return Math.max(sumTo, sumFrom);
                    };
                    // Get the offset in weight values of a point/link.
                    node.offset = function (point, coll) {
                        var offset = 0;

                        for (var i = 0; i < node[coll].length; i++) {
                            if (node[coll][i] === point) {
                                return offset;
                            }
                            offset += node[coll][i].weight;
                        }
                    };

                    // Return true if the node has a shape, otherwise all links are
                    // outgoing.
                    node.hasShape = function () {
                        var outgoing = 0;

                        node.linksTo.forEach(function (link) {
                            if (link.outgoing) {
                                outgoing++;
                            }
                        });
                        return !node.linksTo.length || outgoing !== node.linksTo.length;
                    };

                    this.nodes.push(node);
                }
                return node;
            }
        };

    }(Highcharts));
    (function (H) {
        /* *
         * Sankey diagram module
         *
         * (c) 2010-2019 Torstein Honsi
         *
         * License: www.highcharts.com/license
         */



        var defined = H.defined,
            seriesType = H.seriesType,
            pick = H.pick,
            Point = H.Point;

        /**
         * @private
         * @class
         * @name Highcharts.seriesTypes.sankey
         *
         * @augments Highcharts.Series
         */
        seriesType('sankey', 'column'

            /**
         * A sankey diagram is a type of flow diagram, in which the width of the
         * link between two nodes is shown proportionally to the flow quantity.
         *
         * @sample highcharts/demo/sankey-diagram/
         *         Sankey diagram
         * @sample highcharts/plotoptions/sankey-inverted/
         *         Inverted sankey diagram
         * @sample highcharts/plotoptions/sankey-outgoing
         *         Sankey diagram with outgoing links
         *
         * @extends      plotOptions.column
         * @since        6.0.0
         * @product      highcharts
         * @excluding    animationLimit, boostThreshold, borderColor, borderRadius,
         *               borderWidth, crisp, cropThreshold, depth, edgeColor, edgeWidth,
         *               findNearestPointBy, grouping, groupPadding, groupZPadding,
         *               maxPointWidth, negativeColor, pointInterval, pointIntervalUnit,
         *               pointPadding, pointPlacement, pointRange, pointStart,
         *               pointWidth, shadow, softThreshold, stacking, threshold,
         *               zoneAxis, zones
         * @optionparent plotOptions.sankey
         */
            , {
                colorByPoint: true,
                /**
             * Higher numbers makes the links in a sankey diagram render more curved.
             * A `curveFactor` of 0 makes the lines straight.
             */
                curveFactor: 0.33,
                /**
             * Options for the data labels appearing on top of the nodes and links. For
             * sankey charts, data labels are visible for the nodes by default, but
             * hidden for links. This is controlled by modifying the `nodeFormat`, and
             * the `format` that applies to links and is an empty string by default.
             */
                dataLabels: {
                    enabled: true,
                    backgroundColor: 'none', // enable padding
                    crop: false,
                    /**
                 * The
                 * [format string](https://www.highcharts.com/docs/chart-concepts/labels-and-string-formatting)
                 * specifying what to show for _nodes_ in the sankey diagram. By default
                 * the `nodeFormatter` returns `{point.name}`.
                 *
                 * @sample highcharts/plotoptions/sankey-link-datalabels
                 *         Node and link data labels
                 * @type {string}
                 */
                    nodeFormat: undefined,

                    /**
                 * Callback to format data labels for _nodes_ in the sankey diagram.
                 * The `nodeFormat` option takes precedence over the `nodeFormatter`.
                 *
                 * @type  {Highcharts.FormatterCallbackFunction<object>}
                 * @since 6.0.2
                 */
                    nodeFormatter: function () {
                        return this.point.name;
                    },
                    /**
                 * The
                 * [format string](https://www.highcharts.com/docs/chart-concepts/labels-and-string-formatting)
                 * specifying what to show for _links_ in the sankey diagram. Defaults
                 * to an empty string returned from the `formatter`, in effect disabling
                 * the labels.
                 *
                 * @type {string}
                 */
                    format: undefined,
                    /**
                 * Callback to format data labels for _links_ in the sankey diagram.
                 * The `format` option takes precedence over the `formatter`.
                 *
                 * @type  {Highcharts.FormatterCallbackFunction<Highcharts.SeriesDataLabelsFormatterContextObject>}
                 * @since 6.0.2
                 */
                    formatter: function () {
                        return '';
                    },
                    inside: true
                },
                /**
             * Opacity for the links between nodes in the sankey diagram.
             */
                linkOpacity: 0.5,
                /**
             * The pixel width of each node in a sankey diagram, or the height in case
             * the chart is inverted.
             */
                nodeWidth: 20,
                /**
             * The padding between nodes in a sankey diagram, in pixels.
             */
                nodePadding: 10,
                showInLegend: false,
                states: {
                    hover: {
                    /**
                     * Opacity for the links between nodes in the sankey diagram in
                     * hover mode.
                     */
                        linkOpacity: 1
                    }
                },
                tooltip: {
                /**
                 * A callback for defining the format for _nodes_ in the sankey chart's
                 * tooltip, as opposed to links.
                 *
                 * @type      {Highcharts.FormatterCallbackFunction<object>}
                 * @since     6.0.2
                 * @apioption plotOptions.sankey.tooltip.nodeFormatter
                 */

                    /**
                 * Whether the tooltip should follow the pointer or stay fixed on the
                 * item.
                 */
                    followPointer: true,

                    headerFormat:
                    '<span style="font-size: 10px">{series.name}</span><br/>',
                    pointFormat: '{point.fromNode.name} \u2192 {point.toNode.name}: <b>{point.weight}</b><br/>',
                    /**
                 * The
                 * [format string](https://www.highcharts.com/docs/chart-concepts/labels-and-string-formatting)
                 * specifying what to show for _nodes_ in tooltip of a sankey diagram
                 * series, as opposed to links.
                 */
                    nodeFormat: '{point.name}: <b>{point.sum}</b><br/>'
                }

            }, {
                isCartesian: false,
                forceDL: true,
                orderNodes: true,
                // Create a single node that holds information on incoming and outgoing
                // links.
                createNode: H.NodesMixin.createNode,

                getNodePadding: function () {
                    return this.options.nodePadding;
                },

                // Create a node column.
                createNodeColumn: function () {
                    var chart = this.chart,
                        column = [],
                        nodePadding = this.getNodePadding();

                    column.sum = function () {
                        var sum = 0;

                        this.forEach(function (node) {
                            sum += node.getSum();
                        });
                        return sum;
                    };
                    // Get the offset in pixels of a node inside the column.
                    column.offset = function (node, factor) {
                        var offset = 0;

                        for (var i = 0; i < column.length; i++) {
                            if (column[i] === node) {
                                return offset + (node.options.offset || 0);
                            }
                            offset += column[i].getSum() * factor + nodePadding;
                        }
                    };

                    // Get the column height in pixels.
                    column.top = function (factor) {
                        var height = 0;

                        for (var i = 0; i < column.length; i++) {
                            if (i > 0) {
                                height += nodePadding;
                            }
                            height += column[i].getSum() * factor;
                        }
                        return (chart.plotSizeY - height) / 2;
                    };

                    return column;
                },

                // Create node columns by analyzing the nodes and the relations between
                // incoming and outgoing links.
                createNodeColumns: function () {
                    var columns = [];

                    this.nodes.forEach(function (node) {
                        var fromColumn = -1,
                            i,
                            point;

                        if (!H.defined(node.options.column)) {
                            // No links to this node, place it left
                            if (node.linksTo.length === 0) {
                                node.column = 0;

                            // There are incoming links, place it to the right of the
                            // highest order column that links to this one.
                            } else {
                                for (i = 0; i < node.linksTo.length; i++) {
                                    point = node.linksTo[0];
                                    if (point.fromNode.column > fromColumn) {
                                        fromColumn = point.fromNode.column;
                                    }
                                }
                                node.column = fromColumn + 1;
                            }
                        }

                        if (!columns[node.column]) {
                            columns[node.column] = this.createNodeColumn();
                        }

                        columns[node.column].push(node);

                    }, this);

                    // Fill in empty columns (#8865)
                    for (var i = 0; i < columns.length; i++) {
                        if (columns[i] === undefined) {
                            columns[i] = this.createNodeColumn();
                        }
                    }

                    return columns;
                },


                // Return the presentational attributes.
                pointAttribs: function (point, state) {

                    var opacity = this.options.linkOpacity,
                        color = point.color;

                    if (state) {
                        opacity = this.options.states[state].linkOpacity || opacity;
                        color = this.options.states[state].color || point.color;
                    }

                    return {
                        fill: point.isNode ?
                            color :
                            H.color(color).setOpacity(opacity).get()
                    };
                },

                // Extend generatePoints by adding the nodes, which are Point objects
                // but pushed to the this.nodes array.
                generatePoints: function () {

                    var nodeLookup = {},
                        chart = this.chart;

                    H.Series.prototype.generatePoints.call(this);

                    if (!this.nodes) {
                        this.nodes = []; // List of Point-like node items
                    }
                    this.colorCounter = 0;

                    // Reset links from previous run
                    this.nodes.forEach(function (node) {
                        node.linksFrom.length = 0;
                        node.linksTo.length = 0;
                        node.level = undefined;
                    });

                    // Create the node list and set up links
                    this.points.forEach(function (point) {
                        if (defined(point.from)) {
                            if (!nodeLookup[point.from]) {
                                nodeLookup[point.from] = this.createNode(point.from);
                            }
                            nodeLookup[point.from].linksFrom.push(point);
                            point.fromNode = nodeLookup[point.from];

                            // Point color defaults to the fromNode's color
                            if (chart.styledMode) {
                                point.colorIndex = pick(
                                    point.options.colorIndex,
                                    nodeLookup[point.from].colorIndex
                                );
                            } else {
                                point.color =
                                point.options.color || nodeLookup[point.from].color;
                            }

                        }
                        if (defined(point.to)) {
                            if (!nodeLookup[point.to]) {
                                nodeLookup[point.to] = this.createNode(point.to);
                            }
                            nodeLookup[point.to].linksTo.push(point);
                            point.toNode = nodeLookup[point.to];
                        }

                        // for use in formats
                        point.name = point.name || point.options.id;

                    }, this);

                    // Order the nodes, starting with the root node(s) (#9818)
                    function order(node, level) {
                        if (node.level === undefined) { // Prevents circular recursion
                            node.level = level;
                            node.linksFrom.forEach(function (link) {
                                order(link.toNode, level + 1);
                            });
                        }
                    }

                    if (this.orderNodes) {
                        this.nodes
                            // Identify the root node(s)
                            .filter(function (node) {
                                return node.linksTo.length === 0;
                            })
                            // Start by the root node(s) and recursively set the level
                            // on all following nodes.
                            .forEach(function (node) {
                                order(node, 0);
                            });
                        H.stableSort(this.nodes, function (a, b) {
                            return a.level - b.level;
                        });
                    }
                },

                // Destroy all nodes on setting new data
                setData: function () {
                    if (this.nodes) {
                        this.nodes.forEach(function (node) {
                            node.destroy();
                        });
                        this.nodes.length = 0;
                    }
                    H.Series.prototype.setData.apply(this, arguments);
                },

                // Run translation operations for one node
                translateNode: function (node, column) {
                    var translationFactor = this.translationFactor,
                        chart = this.chart,
                        sum = node.getSum(),
                        height = sum * translationFactor,
                        fromNodeTop = (
                            column.top(translationFactor) +
                            column.offset(node, translationFactor)
                        ),
                        left = this.colDistance * node.column,
                        nodeLeft = chart.inverted ?
                            chart.plotSizeX - left :
                            left,
                        nodeWidth = this.options.nodeWidth;

                    node.sum = sum;

                    // Draw the node
                    node.shapeType = 'rect';

                    node.nodeX = nodeLeft;
                    node.nodeY = fromNodeTop;
                    if (!chart.inverted) {
                        node.shapeArgs = {
                            x: nodeLeft,
                            y: fromNodeTop,
                            width: nodeWidth,
                            height: height
                        };
                    } else {
                        node.shapeArgs = {
                            x: nodeLeft - nodeWidth,
                            y: chart.plotSizeY - fromNodeTop - height,
                            width: nodeWidth,
                            height: height
                        };
                    }
                    node.shapeArgs.display = node.hasShape() ? '' : 'none';

                    // Pass test in drawPoints
                    node.plotY = 1;
                },

                // Run translation operations for one link
                translateLink: function (point) {
                    var fromNode = point.fromNode,
                        toNode = point.toNode,
                        chart = this.chart,
                        translationFactor = this.translationFactor,
                        linkHeight = point.weight * translationFactor,
                        options = this.options,
                        fromLinkTop = fromNode.offset(point, 'linksFrom') *
                            translationFactor,
                        curvy = (
                            (chart.inverted ? -this.colDistance : this.colDistance) *
                            options.curveFactor
                        ),
                        fromY = fromNode.nodeY + fromLinkTop,
                        nodeLeft = fromNode.nodeX,
                        toColTop = this.nodeColumns[toNode.column]
                            .top(translationFactor),
                        toY = (
                            toColTop +
                            (toNode.offset(point, 'linksTo') * translationFactor) +
                            this.nodeColumns[toNode.column].offset(
                                toNode,
                                translationFactor
                            )
                        ),
                        nodeW = options.nodeWidth,
                        right = toNode.column * this.colDistance,
                        outgoing = point.outgoing,
                        straight = right > nodeLeft;

                    if (chart.inverted) {
                        fromY = chart.plotSizeY - fromY;
                        toY = chart.plotSizeY - toY;
                        right = chart.plotSizeX - right;
                        nodeW = -nodeW;
                        linkHeight = -linkHeight;
                        straight = nodeLeft > right;
                    }

                    point.shapeType = 'path';
                    point.linkBase = [
                        fromY,
                        fromY + linkHeight,
                        toY,
                        toY + linkHeight
                    ];

                    // Links going from left to right
                    if (straight) {
                        point.shapeArgs = {
                            d: [
                                'M', nodeLeft + nodeW, fromY,
                                'C', nodeLeft + nodeW + curvy, fromY,
                                right - curvy, toY,
                                right, toY,
                                'L',
                                right + (outgoing ? nodeW : 0),
                                toY + linkHeight / 2,
                                'L',
                                right,
                                toY + linkHeight,
                                'C', right - curvy, toY + linkHeight,
                                nodeLeft + nodeW + curvy,
                                fromY + linkHeight,
                                nodeLeft + nodeW, fromY + linkHeight,
                                'z'
                            ]
                        };

                    // Experimental: Circular links pointing backwards. In
                    // v6.1.0 this breaks the rendering completely, so even
                    // this experimental rendering is an improvement. #8218.
                    // @todo
                    // - Make room for the link in the layout
                    // - Automatically determine if the link should go up or
                    //   down.
                    } else {
                        var bend = 20,
                            vDist = chart.plotHeight - fromY - linkHeight,
                            x1 = right - bend - linkHeight,
                            x2 = right - bend,
                            x3 = right,
                            x4 = nodeLeft + nodeW,
                            x5 = x4 + bend,
                            x6 = x5 + linkHeight,
                            fy1 = fromY,
                            fy2 = fromY + linkHeight,
                            fy3 = fy2 + bend,
                            y4 = fy3 + vDist,
                            y5 = y4 + bend,
                            y6 = y5 + linkHeight,
                            ty1 = toY,
                            ty2 = ty1 + linkHeight,
                            ty3 = ty2 + bend,
                            cfy1 = fy2 - linkHeight * 0.7,
                            cy2 = y5 + linkHeight * 0.7,
                            cty1 = ty2 - linkHeight * 0.7,
                            cx1 = x3 - linkHeight * 0.7,
                            cx2 = x4 + linkHeight * 0.7;

                        point.shapeArgs = {
                            d: [
                                'M', x4, fy1,
                                'C', cx2, fy1, x6, cfy1, x6, fy3,
                                'L', x6, y4,
                                'C', x6, cy2, cx2, y6, x4, y6,
                                'L', x3, y6,
                                'C', cx1, y6, x1, cy2, x1, y4,
                                'L', x1, ty3,
                                'C', x1, cty1, cx1, ty1, x3, ty1,
                                'L', x3, ty2,
                                'C', x2, ty2, x2, ty2, x2, ty3,
                                'L', x2, y4,
                                'C', x2, y5, x2, y5, x3, y5,
                                'L', x4, y5,
                                'C', x5, y5, x5, y5, x5, y4,
                                'L', x5, fy3,
                                'C', x5, fy2, x5, fy2, x4, fy2,
                                'z'
                            ]
                        };

                    }

                    // Place data labels in the middle
                    point.dlBox = {
                        x: nodeLeft + (right - nodeLeft + nodeW) / 2,
                        y: fromY + (toY - fromY) / 2,
                        height: linkHeight,
                        width: 0
                    };
                    // Pass test in drawPoints
                    point.y = point.plotY = 1;

                    if (!point.color) {
                        point.color = fromNode.color;
                    }

                },

                // Run pre-translation by generating the nodeColumns.
                translate: function () {
                    if (!this.processedXData) {
                        this.processData();
                    }
                    this.generatePoints();

                    this.nodeColumns = this.createNodeColumns();

                    var series = this,
                        chart = this.chart,
                        options = this.options,
                        nodeWidth = options.nodeWidth,
                        nodeColumns = this.nodeColumns,
                        nodePadding = this.getNodePadding();

                    // Find out how much space is needed. Base it on the translation
                    // factor of the most spaceous column.
                    this.translationFactor = nodeColumns.reduce(
                        function (translationFactor, column) {
                            var height = chart.plotSizeY -
                            (column.length - 1) * nodePadding;

                            return Math.min(translationFactor, height / column.sum());
                        },
                        Infinity
                    );
                    this.colDistance = (chart.plotSizeX - nodeWidth) /
                            (nodeColumns.length - 1);

                    // First translate all nodes so we can use them when drawing links
                    nodeColumns.forEach(function (column) {

                        column.forEach(function (node) {
                            series.translateNode(node, column);
                        });

                    }, this);

                    // Then translate links
                    this.nodes.forEach(function (node) {
                        // Translate the links from this node
                        node.linksFrom.forEach(function (point) {
                            series.translateLink(point);
                        });
                    });
                },
                // Extend the render function to also render this.nodes together with
                // the points.
                render: function () {
                    var points = this.points;

                    this.points = this.points.concat(this.nodes);
                    H.seriesTypes.column.prototype.render.call(this);
                    this.points = points;
                },
                animate: H.Series.prototype.animate,


                destroy: function () {
                // Nodes must also be destroyed (#8682, #9300)
                    this.data = [].concat(this.points, this.nodes);
                    H.Series.prototype.destroy.call(this);
                }
            }, {
                getClassName: function () {
                    return (this.isNode ? 'highcharts-node ' : 'highcharts-link ') +
                    Point.prototype.getClassName.call(this);
                },
                isValid: function () {
                    return this.isNode || typeof this.weight === 'number';
                }
            });


        /**
         * A `sankey` series. If the [type](#series.sankey.type) option is not
         * specified, it is inherited from [chart.type](#chart.type).
         *
         * @extends   series,plotOptions.sankey
         * @excluding animationLimit, boostThreshold, borderColor, borderRadius,
         *            borderWidth, crisp, cropThreshold, dataParser, dataURL, depth,
         *            edgeColor, edgeWidth, findNearestPointBy, grouping, groupPadding,
         *            groupZPadding, maxPointWidth, negativeColor, pointInterval,
         *            pointIntervalUnit, pointPadding, pointPlacement, pointRange,
         *            pointStart, pointWidth, shadow, softThreshold, stacking,
         *            threshold, zoneAxis, zones
         * @product   highcharts
         * @apioption series.sankey
         */


        /**
         * A collection of options for the individual nodes. The nodes in a sankey
         * diagram are auto-generated instances of `Highcharts.Point`, but options can
         * be applied here and linked by the `id`.
         *
         * @sample highcharts/css/sankey/
         *         Sankey diagram with node options
         *
         * @type      {Array<*>}
         * @product   highcharts
         * @apioption series.sankey.nodes
         */

        /**
         * The id of the auto-generated node, refering to the `from` or `to` setting of
         * the link.
         *
         * @type      {string}
         * @product   highcharts
         * @apioption series.sankey.nodes.id
         */

        /**
         * The color of the auto generated node.
         *
         * @type      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
         * @product   highcharts
         * @apioption series.sankey.nodes.color
         */

        /**
         * The color index of the auto generated node, especially for use in styled
         * mode.
         *
         * @type      {number}
         * @product   highcharts
         * @apioption series.sankey.nodes.colorIndex
         */

        /**
         * An optional column index of where to place the node. The default behaviour is
         * to place it next to the preceding node.
         *
         * @sample highcharts/plotoptions/sankey-node-column/
         *         Specified node column
         *
         * @type      {number}
         * @since     6.0.5
         * @product   highcharts
         * @apioption series.sankey.nodes.column
         */

        /**
         * The name to display for the node in data labels and tooltips. Use this when
         * the name is different from the `id`. Where the id must be unique for each
         * node, this is not necessary for the name.
         *
         * @sample highcharts/css/sankey/
         *         Sankey diagram with node options
         *
         * @type      {string}
         * @product   highcharts
         * @apioption series.sankey.nodes.name
         */

        /**
         * The vertical offset of a node in terms of weight. Positive values shift the
         * node downwards, negative shift it upwards.
         *
         * @sample highcharts/plotoptions/sankey-node-column/
         *         Specified node offset
         *
         * @type      {number}
         * @default   0
         * @since     6.0.5
         * @product   highcharts
         * @apioption series.sankey.nodes.offset
         */

        /**
         * An array of data points for the series. For the `sankey` series type,
         * points can be given in the following way:
         *
         * An array of objects with named values. The following snippet shows only a
         * few settings, see the complete options set below. If the total number of data
         * points exceeds the series' [turboThreshold](#series.area.turboThreshold),
         * this option is not available.
         *
         *  ```js
         *     data: [{
         *         from: 'Category1',
         *         to: 'Category2',
         *         weight: 2
         *     }, {
         *         from: 'Category1',
         *         to: 'Category3',
         *         weight: 5
         *     }]
         *  ```
         *
         * @sample {highcharts} highcharts/series/data-array-of-objects/
         *         Config objects
         *
         * @type      {Array<*>}
         * @extends   series.line.data
         * @excluding drilldown, marker, x, y
         * @product   highcharts
         * @apioption series.sankey.data
         */

        /**
         * The color for the individual _link_. By default, the link color is the same
         * as the node it extends from. The `series.fillOpacity` option also applies to
         * the points, so when setting a specific link color, consider setting the
         * `fillOpacity` to 1.
         *
         * @type      {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
         * @product   highcharts
         * @apioption series.sankey.data.color
         */

        /**
         * The node that the link runs from.
         *
         * @type      {string}
         * @product   highcharts
         * @apioption series.sankey.data.from
         */

        /**
         * The node that the link runs to.
         *
         * @type      {string}
         * @product   highcharts
         * @apioption series.sankey.data.to
         */

        /**
         * Whether the link goes out of the system.
         *
         * @sample highcharts/plotoptions/sankey-outgoing
         *         Sankey chart with outgoing links
         *
         * @type      {boolean}
         * @default   false
         * @product   highcharts
         * @apioption series.sankey.data.outgoing
         */

        /**
         * The weight of the link.
         *
         * @type      {number}
         * @product   highcharts
         * @apioption series.sankey.data.weight
         */

    }(Highcharts));
    return (function () {


    }());
}));
